Printer adapted to perform margin/tabulator setting function

Abstract

There is disclosed a printing apparatus having control equipment for controlling the printing position. The control equipment is detachably mounted on the printing apparatus.

What we claim is: 
     
       1. An electronic apparatus providing a margin and/or tabulator setting function, comprising: printing means;   a carriage carrying said printing means;   carriage displacement means for initiating displacement of said carriage in response to entry of an instruction thereto and for stopping displacement of said carriage in response to a stop signal thereto; and   tabulator/margin setting means, connected to said carriage displacement means, for generating stop signals to stop carriage displacement initiated by said displacement means at desired stop positions, said tabulator/margin setting means comprising a group of switches for setting said desired stop positions of said carriage, said group of switches comprising a printed circuit board having a plurality of open circuit patterns each corresponding respectively to a said desired stop position of said carriage, a pressure-sensitive electroconductive member adhered to said printed circuit board to cover said open circuit patterns, and at least one tabulator/margin setting resilient member mountable for selectively pressurizing an area of said pressure-sensitive electroconductive member corresponding to one said open circuit pattern at a desired stop position to thereby close said circuit pattern and produce a stop signal indicative thereof;   wherein said carriage, when displaced in response to an instruction to said carriage displacement means, is stopped at said tabulator/margin positions selected in accordance with the stop signals produced by said switches.   
     
     
       2. An electronic apparatus according to the claim 1, wherein said tabulator/margin setting resilient member is housed in a case provided with a tabulator/margin graduation and rendered detachably mountable on a panel of said apparatus. 
     
     
       3. An electronic apparatus according to claim 11, wherein said printing means is mounted on said carriage which is displaced in a serial manner. 
     
     
       4. An electronic apparatus according to the claim 2, wherein said panel is composed of a magnetic material, and said case is provided with a magnet capable of adhering to said panel. 
     
     
       5. An electronic apparatus according to claim 4, wherein said printing means is mounted on said carriage which is displaced in a serial manner. 
     
     
       6. An electronic apparatus according to claim 1, wherein said printing means is mounted on said carriage which is displaced in a serial manner. 
     
     
       7. A typewriter for printing on a recording medium, comprising: a keyboard for generating printing signals;   a platen for carrying a recording medium;   a print head mounted for displacement relative to said platen and responsive to signals generated by said keyboard for printing on said recording medium;   a scale for indicating a printing position of said print head relative to said platen; and   set means disposed adjacent to said scale for setting tabulating positions in the displacement of said print head relative to said platen, said set means including a plurality of pairs of electrodes and a member detachably mountable along said scale to selectively electrically connect said electrodes of any one of said pairs of electrodes and thereby produce a tabulation position signal indicating a tabulation position.   
     
     
       8. A typewriter according to claim 7, wherein said plurality of pairs of electrodes are provided on a printed board. 
     
     
       9. A typewriter according to claim 7, further comprising: a housing unit to which said member is detachably mountable.